User blog comment:Sefiros2211/Dante's Age/@comment-1164563-20140321163227/@comment-6769189-20140324080634

It was never officially deemed non-canon but from the way it contradicts DMC4 almost scene for scene as well as containing information that pretty much makes no sense, IMO it might as well be. it also adds so little additional info that its existence is almost insignificant. If it is true that he wrote it after he wasn't working at Capcom, then I'd say it definitely isn't canon and Capcom only authorized it to make some extra cash. Personally I put it in the same catagory as the live-action RE movies.